没有显示到下一个空单元格中的Excel单元格文本

Normally when you type enough characters in cell A1, they display over the cell(s) to the right (B1, C1, etc.). I had a workbook where this was the case, then suddenly I noticed that the text in A1 only displayed in A1 and no longer displayed over the cells to the right. Cells B1, C1, etc. were completely empty/deleted/cleared. I could find no cell formatting like wrap text or otherwise that would cause this.Normally when you type enough characters in cel